FACE-Recognition-Technology1

：数字水印技术作为数字媒体版权保护的有效办法，近年来在国内外引起了人们极大的兴趣。作者采用了DCT离散余弦变换的算法，对图像这种多媒体数字作品进行了数字水印的嵌入和检测研究。并且使用了高效实用的编程工具MATLAB来介绍了一种DCT域的图像数字水印嵌入和提取的(BASIC_WM.M ..........................................cellauto.m ..........................................dctwatermark.m ..........................................detectbasic_wm.m ..........................................plotcorr_coef.m ..........................................wavedetect.m ..........................................wavedetect2.m ..........................................wavemarksvd.m ..........................................wavemarksvd)

说明：  计算机图形学基本算法 DDA直线 中点直线 BRESEMHAM圆 正负法圆 B样条曲线 B曲线 (DDA line algorithm for computer graphics, the midpoint of the basic straight-line method BRESEMHAM circle round the positive and negative B-spline curve B curve)

亚像素边缘检测，基于zernike 灰度矩，实现精度可达0.05个pixel(sub-pixel edge detect)

Z. Liang, J. Xu, D. Zhang, Z. Cao, L. Zhang, "A Hybrid L1-L0 Layer Decomposition Model for Tone Mapping," in CVPR 2018.

使用canny边缘检测算法，提取图像轮廓(Canny edge detection algorithm is used to extract image contour.)

PCA+SVM，对图像进行降维分类，并在yale库上测试取得比较好的效果(PCA+ SVM, dimensionality reduction of image classification, and yale library to achieve better test results)

实现JPEG解码接量化的程序代码。便于初学者使用(Realizing the JPEG decoding by program code. For beginners to use)

常用数字图像处理，图像变换等功能的实现，锐化平滑等算法(digital image processing)

说明：  基于MATLAB图像阈值分割 ，有不同的方法，如人工阈值分割，大津法阈值分割等(Based on MATLAB image threshold segmentation, there are different methods, such as artificial threshold segmentation, Otsu threshold segmentation and so on)

一种简单的虹膜特征提取Matlab实现，主要是gabor滤波器的实现。(A simple iris feature extraction Matlab, gabor filter realization.)